Home / 55,381.96-83,074.12-19,845.60

Finding the Fourth Proportional to 55,381.96, 83,074.12 and 19,845.60

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Solution

The fourth proportional to 55,381.96, 83,074.12 and 19,845.60 is: 29,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,381.96 : 83,074.12 = 19,845.60 : x
  2. Step 2: Convert to fraction form
    55,381.96/83,074.12 = 19,845.60/x
  3. Step 3: Cross multiply
    55,381.96x = 83,074.12 × 19,845.60
  4. Step 4: Simplify right side
    55,381.96x = 1,648,655,755.87
  5. Step 5: Solve for x
    x = 1,648,655,755.87/55,381.96
  6. Step 6: Final answer
    x = 29,768.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.